great-grandfather
Americannoun
Usage
What does great-grandfather mean? A great-grandfather is the father of a person’s grandparent (the grandfather of a person’s parent). When a father’s child has their own children, that father becomes a grandfather. When those children have their own children, he becomes a great-grandfather. Should great-grandfather be capitalized?Great-grandfather should be capitalized when it’s used as a proper name, as in Please tell Great-grandfather that I miss him. But great-grandfather does not need to be capitalized when it’s simply used as a way to refer to him, as in Please tell my great-grandfather that I miss him. Example: My kids were lucky enough to get to know three of their great-grandfathers.
Etymology
Origin of great-grandfather
First recorded in 1505–15
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
"My great-grandfather was a steelworker, my grandfather was a steelworker, and then basically all my uncles from the next generation down were in the steelworks as well."
From BBC • May 31, 2026
Near the Turin ring road, at a glass and steel structure, I speak to Giuseppe Lavazza, whose great-grandfather launched the Lavazza coffee brand 131 years ago.
From BBC • May 28, 2026
The film's discovery has taken McFarland on another journey -- learning about the life of his great-grandfather William DeLyle Frisbee.
From Barron's • Apr. 13, 2026
His great-grandfather played until his death at 98 last year.
From Los Angeles Times • Feb. 27, 2026
Pa said his great-grandfather, Slim Jim Trotter, built that old crossing, which turned out to be part of his undoing.
From "Gone Crazy in Alabama" by Rita Williams-Garcia
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.